Everything has to be vented, but the location of the fixtures will determine the number of vents you need. There would not normally be a pipe to connect the vents to unless the plumber knew you were going to install the bathroom and you paid extra for the vent pipe.

: I'm planning to install a bathroom in my basement with a toilet ,shower,sink I'll be using Zoeller's qwik jon: what is the proper way to vent the bathroom all 3 units seperatly? just the pump? and should there be a pipe to tap the vent to? is a 2 year old house thanks for your advise